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mc cable with aluminum ground

There has been much dissucission at our shop about the proper termination of the ground wire. Some say cut off the aluminum ground before it enters the connector and the cable jacket is your ground path. Others suggest that you terminate the aluminum ground inside the box but we do not have copper to aluminum wire nuts to attach to the boxes pig tail.

At step two instead of cutting, I make a few wraps around the outside of the cable.

I hope you are only talking about AC cable and not the MCI-A (MCap) type cable. In wrapping this larger aluminum conductor around the sheath, you could inadvertently cause damage to the sheath when the connector clamp is tightened down, or if using a snap-in product, you will cause the fitting not to meet the mechanical or electrical specifications.

In the case of the MCI-A cable, follow the manufacturer's instructions.

I hope you are only talking about AC cable and not the MCI-A (MCap) type cable. In wrapping this larger aluminum conductor around the sheath, you could inadvertently cause damage to the sheath when the connector clamp is tightened down, or if using a snap-in product, you will cause the fitting not to meet the mechanical or electrical specifications.

In the case of the MCI-A cable, follow the manufacturer's instructions.

I have not as of late run any MCI-A (MCap). I run into this with the older armor cables, BX. What I wrap is a very thin, flat something - I would not even call it a "wire".